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-rw-r--r--src/helper/stock-items.cpp243
1 files changed, 243 insertions, 0 deletions
diff --git a/src/helper/stock-items.cpp b/src/helper/stock-items.cpp
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Stock-items
+ *
+ * Stock Item management code
+ *
+ * Authors:
+ * John Cliff <simarilius@yahoo.com>
+ * Jon A. Cruz <jon@joncruz.org>
+ * Abhishek Sharma
+ *
+ * Copyright 2004 John Cliff
+ *
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#define noSP_SS_VERBOSE
+
+#include <cstring>
+#include <glibmm/fileutils.h>
+
+#include "path-prefix.h"
+
+#include <xml/repr.h>
+#include "inkscape.h"
+
+#include "io/sys.h"
+#include "io/resource.h"
+#include "stock-items.h"
+
+#include "object/sp-gradient.h"
+#include "object/sp-pattern.h"
+#include "object/sp-marker.h"
+#include "object/sp-defs.h"
+
+static SPDocument *load_paint_doc(char const *basename,
+ Inkscape::IO::Resource::Type type = Inkscape::IO::Resource::PAINT)
+{
+ using namespace Inkscape::IO::Resource;
+
+ for (Domain const domain : {SYSTEM, CREATE}) {
+ auto const filename = get_path_string(domain, type, basename);
+ if (Glib::file_test(filename, Glib::FILE_TEST_IS_REGULAR)) {
+ auto doc = SPDocument::createNewDoc(filename.c_str(), false);
+ if (doc) {
+ doc->ensureUpToDate();
+ return doc;
+ }
+ }
+ }
+
+ return nullptr;
+}
+
+// FIXME: these should be merged with the icon loading code so they
+// can share a common file/doc cache. This function should just
+// take the dir to look in, and the file to check for, and cache
+// against that, rather than the existing copy/paste code seen here.
+
+static SPObject * sp_marker_load_from_svg(gchar const *name, SPDocument *current_doc)
+{
+ if (!current_doc) {
+ return nullptr;
+ }
+ /* Try to load from document */
+ static SPDocument *doc = load_paint_doc("markers.svg", Inkscape::IO::Resource::MARKERS);
+
+ if (doc) {
+ /* Get the marker we want */
+ SPObject *object = doc->getObjectById(name);
+ if (object && SP_IS_MARKER(object)) {
+ SPDefs *defs = current_doc->getDefs();
+ Inkscape::XML::Document *xml_doc = current_doc->getReprDoc();
+ Inkscape::XML::Node *mark_repr = object->getRepr()->duplicate(xml_doc);
+ defs->getRepr()->addChild(mark_repr, nullptr);
+ SPObject *cloned_item = current_doc->getObjectByRepr(mark_repr);
+ Inkscape::GC::release(mark_repr);
+ return cloned_item;
+ }
+ }
+ return nullptr;
+}
+
+
+static SPObject *
+sp_pattern_load_from_svg(gchar const *name, SPDocument *current_doc)
+{
+ if (!current_doc) {
+ return nullptr;
+ }
+ /* Try to load from document */
+ static SPDocument *doc = load_paint_doc("patterns.svg");
+
+ if (doc) {
+ /* Get the pattern we want */
+ SPObject *object = doc->getObjectById(name);
+ if (object && SP_IS_PATTERN(object)) {
+ SPDefs *defs = current_doc->getDefs();
+ Inkscape::XML::Document *xml_doc = current_doc->getReprDoc();
+ Inkscape::XML::Node *pat_repr = object->getRepr()->duplicate(xml_doc);
+ defs->getRepr()->addChild(pat_repr, nullptr);
+ Inkscape::GC::release(pat_repr);
+ return object;
+ }
+ }
+ return nullptr;
+}
+
+
+static SPObject *
+sp_gradient_load_from_svg(gchar const *name, SPDocument *current_doc)
+{
+ if (!current_doc) {
+ return nullptr;
+ }
+ /* Try to load from document */
+ static SPDocument *doc = load_paint_doc("gradients.svg");
+
+ if (doc) {
+ /* Get the gradient we want */
+ SPObject *object = doc->getObjectById(name);
+ if (object && SP_IS_GRADIENT(object)) {
+ SPDefs *defs = current_doc->getDefs();
+ Inkscape::XML::Document *xml_doc = current_doc->getReprDoc();
+ Inkscape::XML::Node *pat_repr = object->getRepr()->duplicate(xml_doc);
+ defs->getRepr()->addChild(pat_repr, nullptr);
+ Inkscape::GC::release(pat_repr);
+ return object;
+ }
+ }
+ return nullptr;
+}
+
+// get_stock_item returns a pointer to an instance of the desired stock object in the current doc
+// if necessary it will import the object. Copes with name clashes through use of the inkscape:stockid property
+// This should be set to be the same as the id in the library file.
+
+SPObject *get_stock_item(gchar const *urn, gboolean stock)
+{
+ g_assert(urn != nullptr);
+
+ /* check its an inkscape URN */
+ if (!strncmp (urn, "urn:inkscape:", 13)) {
+
+ gchar const *e = urn + 13;
+ int a = 0;
+ gchar * name = g_strdup(e);
+ gchar *name_p = name;
+ while (*name_p != ':' && *name_p != '\0'){
+ name_p++;
+ a++;
+ }
+
+ if (*name_p ==':') {
+ name_p++;
+ }
+
+ gchar * base = g_strndup(e, a);
+
+ SPDocument *doc = SP_ACTIVE_DOCUMENT;
+ SPDefs *defs = doc->getDefs();
+ if (!defs) {
+ g_free(base);
+ return nullptr;
+ }
+ SPObject *object = nullptr;
+ if (!strcmp(base, "marker") && !stock) {
+ for (auto& child: defs->children)
+ {
+ if (child.getRepr()->attribute("inkscape:stockid") &&
+ !strcmp(name_p, child.getRepr()->attribute("inkscape:stockid")) &&
+ SP_IS_MARKER(&child))
+ {
+ object = &child;
+ }
+ }
+ }
+ else if (!strcmp(base,"pattern") && !stock) {
+ for (auto& child: defs->children)
+ {
+ if (child.getRepr()->attribute("inkscape:stockid") &&
+ !strcmp(name_p, child.getRepr()->attribute("inkscape:stockid")) &&
+ SP_IS_PATTERN(&child))
+ {
+ object = &child;
+ }
+ }
+ }
+ else if (!strcmp(base,"gradient") && !stock) {
+ for (auto& child: defs->children)
+ {
+ if (child.getRepr()->attribute("inkscape:stockid") &&
+ !strcmp(name_p, child.getRepr()->attribute("inkscape:stockid")) &&
+ SP_IS_GRADIENT(&child))
+ {
+ object = &child;
+ }
+ }
+ }
+
+ if (object == nullptr) {
+
+ if (!strcmp(base, "marker")) {
+ object = sp_marker_load_from_svg(name_p, doc);
+ }
+ else if (!strcmp(base, "pattern")) {
+ object = sp_pattern_load_from_svg(name_p, doc);
+ }
+ else if (!strcmp(base, "gradient")) {
+ object = sp_gradient_load_from_svg(name_p, doc);
+ }
+ }
+
+ g_free(base);
+ g_free(name);
+
+ if (object) {
+ object->setAttribute("inkscape:isstock", "true");
+ }
+
+ return object;
+ }
+
+ else {
+
+ SPDocument *doc = SP_ACTIVE_DOCUMENT;
+ SPObject *object = doc->getObjectById(urn);
+
+ return object;
+ }
+}
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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